What feature makes morganucodonts transitional species?
a. cold-blooded, but had fur
b. jaw that features both mammalian and reptilian characteristics
c. both scales and fur
d. egg-laying, but had fur and endothermy
b. jaw that features both mammalian and reptilian characteristics
You might also like to view...
During a systemic acquired resistance response, a plant ________
a. shelters nitrogen-fixing bacteria b. releases protective organic compounds c. folds leaves to minimize evaporation d. walls off wounds
Where is hydrogen actively pumped in the
mitochondria? a. To the inner membrane. b. To the outer membrane. c. To the intermembrane space. d. To the matrix. e. To the cytoplasm
Allergies run in families because
A. immunoglobulins pass from mother to fetus. B. immunoglobulins pass through breast milk. C. the relative production of IgE is inherited. D. the variable region of antibodies is genetically determined.
The stimulation of auditory nerves depends on the opening and closing of channels in the auditory hair cells. Which type of gating mechanism do these cells use?
(a) voltage-gated (b) extracellular ligand-gated (c) intracellular ligand-gated (d) stress-gated